Lattice measurement of the energy-gap in a spontaneously broken phase

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dc.creatorCea, P.
dc.creatorConsoli, M.
dc.creatorCosmai, L.
dc.date2001-01-19
dc.date2001-03-22
dc.date.accessioned2026-07-07T03:43:43Z
dc.date.available2026-07-07T03:43:43Z
dc.descriptionUsing lattice simulations of a one-component $(λΦ^4)_4$ theory, we have measured the energy spectrum $ω({\mathbf{k}})$ in the broken phase at various lattice sizes. Our data show that the energy-gap $ω(0)$ is {\it not} the `Higgs mass' $M_h$ but an infrared-sensitive quantity that becomes smaller and smaller by increasing the lattice size and may even vanish in the infinite-volume limit.
dc.description11 pages, 4 figures, 1 table. Revised version with more statistics and other measured quantities
dc.identifierhttps://arxiv.org/abs/hep-ph/0101219
dc.identifierhttp://arxiv.org/abs/hep-ph/0101219
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/40321
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.titleLattice measurement of the energy-gap in a spontaneously broken phase
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